KitchenSync is the OpenSync GUI frontend for the K Desktop Environment. It synchronizes KDE PIM-suite applications like Kaddressbook (contacts), KOrganizer (calendar), and Knotes (notes). KDE PIM applications can also be combined into Kontact framework, where they appear as a single application with tighter integration. As applications are the same, Kontact is also a supported application.
An Akonadi plugin is under development to support KDE4 PIM Manager.
The source code is maintained in KDE's Playground: http://websvn.kde.org/trunk/playground/pim/kitchensync/. Use the following command to get a local copy:
Release tarballs are published on the KDE-Apps project page: http://kde-apps.org/content/show.php/KitchenSync?content=132538